Romualdo, Alvin, Jinnifer Arroyo, and Sherwin Butil. “Leadership Competency Model for Public Safety Mid-Level Managers”. International Journal of Performance and Organizations 2, no. 2 (December 31, 2023): 141–145. Accessed April 21, 2026. http://ijpo.org/index.php/ijpo/article/view/67.